0.7.0 — Unified Hook API, Precise Instrumentation & Context Semantics Cleanup

This release introduces a unified instrumentation model under addHook(), along with breaking changes to clarify context semantics and remove long-standing ambiguities.

✨ New
at — Precise location-based instrumentation

You can now define precise hooks at specific locations directly within addHook() using the new at handler.

WB.Node.Instrumentation.addHook(location, {
  at: [
    {
      location: "21:2",  // line:col
      onHit(ctx) {
        ctx.log("hit exact location")
      }
    }
  ]
});

This enables instruction-level instrumentation without switching APIs.

Precise hooks were previously only available via addLiveHooks.
With at, everything is now unified under addHook().

🔥 Breaking Changes
ctx.variables no longer exposes runtime values
ctx.variables is now strictly a list of variables that can be modified via ctx.setVariable().

Before

ctx.variables.v1

After

v1 = 21 // access directly in the instrumented context
ctx.setVariable("v1", 123)  // use setVariable in case v1 is a const

ctx.variables // ["v1", "x", ...]